// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/controls/menu/menu_separator.h"

#include "build/build_config.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/canvas.h"
#include "ui/native_theme/native_theme.h"
#include "ui/views/controls/menu/menu_config.h"

namespace {

const int kSeparatorHeight = 1;

} // namespace

namespace views {

#if !defined(OS_WIN)
void MenuSeparator::OnPaint(gfx::Canvas* canvas)
{
    OnPaintAura(canvas);
}
#endif

gfx::Size MenuSeparator::GetPreferredSize() const
{
    const MenuConfig& menu_config = MenuConfig::instance();
    int height = menu_config.separator_height;
    switch (type_) {
    case ui::SPACING_SEPARATOR:
        height = menu_config.separator_spacing_height;
        break;
    case ui::LOWER_SEPARATOR:
        height = menu_config.separator_lower_height;
        break;
    case ui::UPPER_SEPARATOR:
        height = menu_config.separator_upper_height;
        break;
    default:
        height = menu_config.separator_height;
        break;
    }
    return gfx::Size(10, // Just in case we're the only item in a menu.
        height);
}

gfx::Rect MenuSeparator::GetPaintBounds()
{
    int pos = 0;
    switch (type_) {
    case ui::LOWER_SEPARATOR:
        pos = height() - kSeparatorHeight;
        break;
    case ui::SPACING_SEPARATOR:
        return gfx::Rect();
    case ui::UPPER_SEPARATOR:
        break;
    default:
        pos = height() / 2;
        break;
    }

    gfx::Rect paint_rect(0, pos, width(), kSeparatorHeight);
    if (MenuConfig::instance().use_outer_border)
        paint_rect.Inset(1, 0);
    return paint_rect;
}

void MenuSeparator::OnPaintAura(gfx::Canvas* canvas)
{
    canvas->FillRect(GetPaintBounds(),
        GetNativeTheme()->GetSystemColor(
            ui::NativeTheme::kColorId_MenuSeparatorColor));
}

} // namespace views
